Superheater-boiler.



J. E. BELL.

SUPERHBATER BOILER APPLIOATloN rum MARA; 1905.

1,036,517, Patented Aug.20,1912

6 SHEETS-SHEET 5.

J. E.. BELL.

SUPBRHEATBR BOILER.

APPLICATION FILED Mmm, 1905. 4

1,036,517, Patented Aug. 20, 1912.

8 SHEETS-SHEET 6.

zl/tnesses; bwenjw;

MII/u/WM-umn/ d ZI yThe boxes are preferably protected on the which they'are set. The steam passes from :UNITED sTArns PATENT OFFICE.

JOHN E. BELL, OF BARERTON, OHIO, ASS'IGNOR TO THE BABCOCK & WILCOX COMPANY, i

OF NEW YORK, N. Y., A CORPORATION Ol" NEW JERSEY.

snPERnnA'rnR-BQILER l i Application tiled March 9,

`T all whom @may concierne@ l Be it lmomntliatgl, Jonimll. fBnLL, ofl BarbertexnSummit, g;,ounty,.'l'.(;)ll1i0,' have invented' a new andusetul superbement-Boiler, of iyhich the follmvingdsva nll,`,clear, and.

exat I description.A ,referenfcenlein'g .hadto f of this'specititntion, in Whit-live i. Figline 143s a. vertical the abccoinpanyingv drawingsfo'rrning part' longitndj nal see, tion nay iniproyed superheaten',4 boilerg.. Eig-L is a Verti 'afl eros eetion vShowing the. snperheater: Fign ,is i I iew ,similar to Fig.; 1 slioiriiig another forni of the invention; lfigs. 41 and.l 5 are ijertieal crossseetions of Fig. 3 showing right and left. hand airangef ments of the .supra-heater; and Fig. t3 :is a `fertical longitudinal section ot'A another form et' the invention.

My invention relates totheclass of superheater boilers, and is designed to provide a simple and efficient apparatus of this charaeter.

In the drawings, referring to the forms of Figs. 1 and .2, f) and 3 are upper transn verso steam and water drums connected by banks ot tubesl `rl and 5 with mud drums and 7. The mnd tlrnnis are Connected by pipes S and the steam spaces olf the upper tlrunis are connected by pipes tl. l() represents small headers into which the water rrrulators ll'antl lt? lead from the drums l and 3, these headers being connected by tm'rtical tubesI l; :unl 1l with supplemental r-:iter drinn l5, 'the drinn 15 is connected te one nl' the nenti lr|nns-in the 'forni tlruur by pipes 1t),

rhoun. to the rear inutl vertical baille t7 extends from thtl drum for the iunior portion of the height of the tubes 13 nini lllY and is provided with .shelies 1S. ln the space between the tubes 13 and the bunk ot' tubes a" l place the superlxeater, which is l'ireferably of the forni with end boxes 'For reversely bentI tubes, though it may be ot any desirable form. In the present form. duplicate boxes 19 are set in the opposite side walls, these boxes being provided with dilerent chambers formed by partitions 20. The boxes are provided with the U-.shaped tubes 21 which form the superheating surface, these tubes being arranged to give successive back and forth pass e through the dierent: chambers of the boxes.

inner sides bythe refractory .side Walls, on

'sijneciiiction'o'f Letters Patent'.

l the rear drum 2 through t 'the pipes 23. which are connected. to' Athe Iafenlf'edAuig. 20, 1.11.12.

1905. Serial No'. 249,182. .t L

he outlet .lower compartments 1 fthe= -superlteater l:and-forth until it reaol'res the uppei rom'- pa'rtnlent. Where it taken out tlifroiiglir suitable pipe 2l. The t-laxne and lgasesafri'slv ,ing-from the combustion Chanlbei'' flott :over-.the rear. sot lof fwatertubes2 and also over. the )superbe-liter, and then i:passfto the outlet. llue 26. Y f "'15 Theiform showivin Fig'gs-'B i one superheater boxv 19Lisfprovied in'one side Wall, theziU-shapediflp substantially: In-this form parts similar to those of Figs. l and Q are designated by similar numerals with the letter a applied.

The fornisshown in Fig. 5 are the same :is that shown in Figs. 3 and l, except thatthe super-heater box is done away with and the. snperheuter consists of an endless pipe 2T rt-rvcrsely bent baelt and forth and havin;r its upper section connected to the outlet.

The form. of Fig.- G is similar to that of Figs. 1 and 2 exeept that the baille inthe rear of the rear set of water tubes instead of being a plain wall as in Fig. 15 consists of a baille support between watertubes.

'.52'. into e's f2? extending .boxes 1The .steam thence@eirenlzltesbaelt' Thusy in thisy lig-nrc I show the front Wall ofl the line QG as consisting of a baffle 28 extending: down from headers 29 a portion of the length of the two rows ofwater tubes 30 and 3l. These water tubes-connect the row of headers 20 to the supplemental water drum 32 which is preferably connected 'with the drum G bytubes or nipples 33. The headers 29 are connected to the rear upper drum 2 by the nipples or pipes 34 over which is the partition or baille 35 to prerent short circuiting of the gases. form parts similar t0 ,those of Figs. 1 and Q are designated by similar numerals with the prime mark applied. v

The advantages of my invention result from the peculiar location of the. superheater in the space between the central baille and water tubes and the rear bank of tubes. The gases Contact with the front bank bf tubes before they pass over the superheater and the second banl The headers maybe replaced by a lsnot-'gie transverse drum or header., the tubes 13 .and

In this i 1,4 may be extended into either of the mud.`

drums; these tubes may lead directly to the waterfspace of the steam and Water lrlrums; and other variations may be made 1in the\ 5 form and Yarrangement of the boiler and superheater without departing from xny invention..

I claim l' 1. A water tubeboiler comprisingl a set' ting, upper and lower transversely disposed one side of the water tubes above the spei' i my hand. l

heater, and a'second horizontal s'helflbelo2 Water tubes; substantially as described. i 2; Awater tube boiler including A 'selt- I ting, a pair of upper steam andwater drums last heater {substantiallyas described.

the superheater on the other Vside thev and a pair of lower mud drums arranged therein, a pair of banks of tubes connectlng said drums," an intermediate baille arranged between the banks of tubes and provided near its up'per'p'ortion with approximately horizontal shelvesthat extend out over the two passes to points adjacent the banks of 30 ubes, an auxiliary shelf extending across he rearmost bank of tubes, and a superheater arranged in thevdown pass at a point blowone of the upper-shelves and in a pdsition labove the horizontal plane of the 3/57/ auigiiliary shelf, the shelves in the last pass/ l being arranged lto* pass the gases in a zig,v zagldirectionbetween the watertubes in the ass and between the tubes of the super- 4d Inytestimony whereof, Iliave hereunto set 

